# Transits

Two endpoints for transit work:

| Endpoint | Credits | What it does |
|---|---|---|
| `POST /v1/transits` | 50 | Transit chart for a specific date, overlaid on natal location |
| `POST /v1/transit-calendar` | 100 | Calendar of transit events over a date range |

## POST /v1/transits — overlay

Calculates planet positions on a given transit date in the natal location's coordinates.

### Parameters

All natal chart parameters (`date`, `time`, `timezoneOffset`, `latitude`, `longitude`, `houseSystem`) plus:

| Parameter | Type | Required | Description |
|---|---|---|---|
| `transitDate` | string | Yes | Transit date `YYYY-MM-DD` |
| `transitTime` | string | No (`12:00:00`) | Transit time `HH:mm:ss` |
| `transitTzOffset` | number | No (0) | Transit timezone offset |

### Example

<Tabs>
  <TabItem label="cURL">
    ```bash frame="terminal"
    curl -X POST https://api.astroway.info/v1/transits \
      -H "X-Api-Key: aw_live_your_key_here" \
      -H "Content-Type: application/json" \
      -d '{
        "date": "1990-07-14",
        "time": "14:30:00",
        "timezoneOffset": 3,
        "latitude": 50.4501,
        "longitude": 30.5234,
        "transitDate": "2026-04-14",
        "transitTime": "12:00:00",
        "transitTzOffset": 3
      }'
    ```
  </TabItem>
  <TabItem label="Node.js">
    ```ts
    const res = await fetch('https://api.astroway.info/v1/transits', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'X-Api-Key': process.env.ASTROWAY_API_KEY!,
      },
      body: JSON.stringify({
        date: '1990-07-14', time: '14:30:00', timezoneOffset: 3,
        latitude: 50.4501, longitude: 30.5234,
        transitDate: '2026-04-14', transitTime: '12:00:00', transitTzOffset: 3,
      }),
    });
    const transits = await res.json();
    console.log(transits.planets); // Transit planet positions
    ```
  </TabItem>
  <TabItem label="Python">
    ```python

    r = requests.post(
        'https://api.astroway.info/v1/transits',
        headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
        json={
            'date': '1990-07-14', 'time': '14:30:00', 'timezoneOffset': 3,
            'latitude': 50.4501, 'longitude': 30.5234,
            'transitDate': '2026-04-14', 'transitTime': '12:00:00', 'transitTzOffset': 3,
        },
    )
    transits = r.json()
    print(transits['planets'])
    ```
  </TabItem>
  <TabItem label="PHP">
    ```php
    <?php
    use GuzzleHttp\Client;

    $aw = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
    $r = $aw->post('transits', [
        'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
        'json' => [
            'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3,
            'latitude' => 50.4501, 'longitude' => 30.5234,
            'transitDate' => '2026-04-14', 'transitTime' => '12:00:00', 'transitTzOffset' => 3,
        ],
    ]);
    $transits = json_decode($r->getBody(), true);
    print_r($transits['planets']);
    ```
  </TabItem>
</Tabs>

### Response

Same structure as `/v1/chart` — full chart with planets, houses, aspects — but calculated for the transit date.

---

## POST /v1/transit-calendar — event calendar

Scans a date range and returns a list of transit events: exact aspects of transit planets to natal planets, ingresses, retrogrades.

### Additional parameters

| Parameter | Type | Required | Description |
|---|---|---|---|
| `startDate` | string | Yes | Range start `YYYY-MM-DD` |
| `endDate` | string | Yes | Range end `YYYY-MM-DD` |

<Aside type="caution">
Range up to 365 days. Wider range = longer calculation (typically 0.5–2 seconds). Cost: **100 credits** regardless of range length.
</Aside>

### Example

<Tabs>
  <TabItem label="cURL">
    ```bash frame="terminal"
    curl -X POST https://api.astroway.info/v1/transit-calendar \
      -H "X-Api-Key: aw_live_your_key_here" \
      -H "Content-Type: application/json" \
      -d '{
        "date": "1990-07-14",
        "time": "14:30:00",
        "timezoneOffset": 3,
        "latitude": 50.4501,
        "longitude": 30.5234,
        "startDate": "2026-04-01",
        "endDate": "2026-04-30"
      }'
    ```
  </TabItem>
  <TabItem label="TypeScript (fetch)">
    ```ts
    const r = await fetch('https://api.astroway.info/v1/transit-calendar', {
      method: 'POST',
      headers: { 'X-Api-Key': apiKey, 'Content-Type': 'application/json' },
      body: JSON.stringify({date: '1990-07-14',
      time: '14:30:00',
      timezoneOffset: 3,
      latitude: 50.4501,
      longitude: 30.5234,
      startDate: '2026-04-01',
      endDate: '2026-04-30',}),
    });
    const { data: calendar } = await r.json();

    for (const event of calendar.events) {
      console.log(`${event.date}: ${event.transitPlanet} ${event.aspect} ${event.natalPlanet}`);
    }
    ```
  </TabItem>
  <TabItem label="Python">
    ```python

    r = requests.post(
        'https://api.astroway.info/v1/transit-calendar',
        headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
        json={
            'date': '1990-07-14', 'time': '14:30:00', 'timezoneOffset': 3,
            'latitude': 50.4501, 'longitude': 30.5234,
            'startDate': '2026-04-01', 'endDate': '2026-04-30',
        },
    )
    calendar = r.json()['data']
    for event in calendar['events']:
        print(f"{event['date']}: {event['transitPlanet']} {event['aspect']} {event['natalPlanet']}")
    ```
  </TabItem>
  <TabItem label="PHP">
    ```php
    <?php
    use GuzzleHttp\Client;

    $aw = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
    $r = $aw->post('transit-calendar', [
        'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
        'json' => [
            'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3,
            'latitude' => 50.4501, 'longitude' => 30.5234,
            'startDate' => '2026-04-01', 'endDate' => '2026-04-30',
        ],
    ]);
    $calendar = json_decode($r->getBody(), true)['data'];
    foreach ($calendar['events'] as $e) {
        printf("%s: %s %s %s\n", $e['date'], $e['transitPlanet'], $e['aspect'], $e['natalPlanet']);
    }
    ```
  </TabItem>
</Tabs>

### Example response

```json
{
  "events": [
    {
      "date": "2026-04-03",
      "transitPlanet": "Mars",
      "natalPlanet": "Sun",
      "aspect": "conjunction",
      "orb": 0.12,
      "exact": true
    },
    {
      "date": "2026-04-15",
      "transitPlanet": "Jupiter",
      "natalPlanet": "Moon",
      "aspect": "trine",
      "orb": 0.45,
      "exact": true
    }
  ]
}
```

## Related endpoints

| Endpoint | Credits | What it adds |
|---|---|---|
| `/v1/forecast-calendar` | 100 | Annual forecast — 365-day heatmap |
| `/v1/progressions` | 50 | Secondary progressions |
| `/v1/solar-return` | 50 | Solar return (annual chart) |
| `/v1/aspect-timeline` | 100 | Aspect timeline over range |

## Next

- [Natal chart](/en/examples/natal/) — basic request
- [Synastry](/en/examples/synastry/) — two-chart compatibility
- [Human Design](/en/examples/human-design/) — full HD chart
- [API reference](/docs/api/) — all {siteMeta.endpoints} endpoints